Tuesday, September 9, 2008

Cisco CCNA Certifications Exam 640-816

There is two types 350-018 of storage; primary storage and secondary storage. Primary storage is RAM (random access memory). Our hard drive, our cache memory, and processor registers are primary storage. Secondary storage is in a form of a; zip discs, floppy discs, CD/DVD drives, memory cards, memory sticks etc. The most common unit of storage is byte which is one character of data. There is kilobyte which is 1024 characters, megabyte 640-801 1 048 576 characters, gigabyte which is more than 1 billion of characters, terabyte which is more than 1 trillion of characters, petabye which is 1 quadrillion of characters. Early storage methods were paper tape and punch cards but now days it has even a optical storage which uses tiny laser to illuminate the surface of our DVD’s and CD’s that we make. Now days you can use web servers for your storage which 640-816 we can access anywhere we are in the world as long as we have a internet access. Storages are becoming more and more user friendly.

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